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分析了农牧交错带土壤退化的原因、类型和表征。根据土壤质量概念的内涵和功能 ,提出用适宜的物理、化学和生物学质量指标体系全面评估农牧交错带土壤的生产、环境和健康功能 ,辩识出土壤质量下降的区域 ,提出退化土壤质量恢复的技术措施 ,将土壤的肥力质量、环境质量和健康质量统一协调起来 ,为土地的合理利用提供科学依据 ,实现人口、资源、环境的协调发展
The causes, types and characterizations of soil degradation in the ecotone of agriculture and pasture were analyzed. According to the connotation and function of the concept of soil quality, it is proposed to evaluate the production, environment and health function of soil in the ecotone between agriculture and animal husbandry comprehensively with the appropriate index system of physical, chemical and biological quality, to identify the area with degraded soil quality and to propose the quality of degraded soil The technical measures of restoration will unify and coordinate the fertility, environmental quality and health quality of soil so as to provide a scientific basis for the rational utilization of land and realize the coordinated development of population, resources and environment